Glass-forming machine



Aug. a, 1925. 4 1,550,352 A. N. CRAMEE GLASS FORMING MACHI NE Filed March 16, w22

:NVE n L Beer/V CFA/WEE .clampingjbolt ,37.* The mol out of the control of the'finishing mold its tilting movements are controlled'by a stationary cam 40,011 which'runs a cam roll41 carried by the arm 28.

Air for cooling the mold bottom 'is suppliedthrough a channel i2` to an air chamber 43 on the frame 30, said chamber having 'a nozzle' 44 through which air is directed against the mold bottom. The supply of air to the chamber 43 may be controlled by avalve 45. 4It will be noted'that th e air channel 42 is maintained in communication with the air chamber 43 at all timesso that drops by gravity from the' machine.

' a continuous supply .of cooling air'may' be directedagainst the mold bottom except during the brief interval of timeI the bottom 1sv tilted to discharging position.

- Theoperation of the mold bottom 'may' be-j summedup as follows: fter the parison has been swung downto g the-Figure 3 position, the bottom section 26 `may be projected'upward by its cam 38 to engage the lower end of the parison before the blank mold opens, so that when the blank mold is opeuedthe blank is supported by both neck mold and the bottom section 26 until the nishingmold has closed. `After the finishing mold closes. the blank is blown to its finished form (Fig. 1). The bottom section 2G is then lowered to the Figurei position, so that it will not interfere with the discharge of the bottle. After the finishingr mold opens, the frame 30 carryingthe mold bottom.moves vertically downward until a-rifested by a stop 46 on the mold carriage, thne'pcam 33 being shaped to permit this downward movement. After the moldfrbottom with the finished article ,thereon is thus lowered. the arm 28 with the mold bottom is tilted about the pivot 29, the cam 40 being shaped to permit this tilting, and the botlle e mold bottom is then immediately returned to its upright position.

It will be noted that the mold bottom when arrested by the stop 46 is always in the same position regardless ofthe adjustment of the roll 34, -so that the articles are always discharged from the same level regardless ofthe adjustment for different lengths of molds.A

This arrangement makes it practical to manufacture a number of bottles or other articles of different lengths or sizes at one time '.'on the same machine. The bottom plate is -zonta-l position.l -flf under complete controlof the :cams at all vtimes when not under the control ofthe of bottom ate is vused in `making bottles or` v other artic es having dat 'or approximately flat bottoms.4 The construction-"and 'operaltion may be substantially-as abovedescnbed in connection with the other views, except that the movablesection 26 with its operai;` ing mechanism areomitted."

Modifications may be resorted to" r.within the spirit and scope of my invention.

. What I claim is:

" chine,a finishing moldcomprisin flater-ally entrantl bottom-f'member ,movablel vertically in said bottoni section while'the-"latter isI in horizontalposition, and-fmeanstomove said `bottom Section vertigo; whileneldinngrii' f 2..In 'a glass forming-machinothecombi;

nation of t literally wingingmql sections, a-;

mold bot-tom,a"'camoperative mo'vezsaid f 'bottom ,vertically into and out of {'xi'sitioiiA to close the lower end of the-mold, saidnbottom being mounted.V vfor, .tiltingmvementp and a cam' to control said movement.

3. In a glass forming machine,^the l nation of a mold comprisingla body portion anda bottom movable vertically toward. and

*fromthe body ortion, .a cam to'l control said movements, an

wardmovement of the mold bottom. independently of said cam.

4.' In a p bination o a rotating mold carriage,.a mold thereon comprising a. body portion and a mold bottom, a stationa cam operable to lift the mold bottom, a justin'gfmeans to varyv the .height-to 'which the mold bottom is lifted bythe'cam, and a.l stop to limit the downward movement of the mold bottom and cause it to be arrested at the same 1315 lowered position independently -of said adjustment; v.

5. In a glass forming machine, the oombination of a rotating mold carriage, a. moldthereon comprising a. body portion. and a mold bottom, and a. stationary cam o 'rable to lift the mold botto'mby a straig t line movement, said bottom being mountedfor tilting movement to discharge an article supported thereon.

6.' In .a glass forming machine, the comlass forming machine, the oombinationof a rotating mold carriage, a mold thereon comprising a body portion and a mold'bottom. n. stationary cam operable to lift. the mold bottom, said bottom being mounted for tilting movement to discharge an article supported thereon, and a. cam to control said tilting movement and cause such tilting. movement to take plane whilel the thereon, bottoms ,or said molds, frames carrying said bottoms and mounted for vertical reciprocating movement on the mold carriage, a stationary cam to control-said vertical movements, said mold bottoms each being pivotally Iconnected to its frame for tilting movement about a horizontal -a,xis,\and a cam controlling such tilting movements.

8. In a, glass forming machine, the combination of a. rotary-f carriage, finishing molds thereon, bottoms for said molds. frames carrying said bottoms and mounted for vertical reciprocating movement on the mold carriage, nozzles carried on .said

frames and arranged to direct lcooling air against the mold bottoms, .and means to supply air to said nozzles. 9. In a bottleforming machine, the coml binat-ion of a blank mold, a finishing mold, 1

a mold bottom of a size and shapeto enter the charge receiving end of the blank nmold,

means to. invert the blank mold with a char of lglasstl1erein, means to move "the: mo d bottom u ard vand cause it to enter the .blank mo d into position to engage the blank while'thel blank mold remains closed, means to then open 4the blank mold while said bottom is in supporting contact with the blank,'

and means to then close the finishing mold about the blank.

10; The method of forming a. hollow glass varticle which comprises forming a. blank vof lastc lass in a blank mold, inventing the lank w ile retained in the mold, moving 49 a mold bottom upward into supporting engagement with the blank while the latter r1s held by theA blank mold, opening the blank mold while the blank is supported at its lower end by the mold bottom and at its upperV end by a neck mold, enclosing the b ank in a finishing mold while thus suplrted, and blowing it to hollow lform in the ishing mold.

Signed at Toledo, in the county'of Lucas 5 and State of Ohio, this 11 day of` March,

ALBERT.. N'. CRAMER. 

